| 摘要 |
Novel benzotriazolesulfonic acid derivatives of formula <IMAGE> wherein: R1 is hydrogen, halogen, C1-C4alkyl, C1-C4alkoxy, C1-C4haloalkoxy having at least two identical or different halogen atoms, CF3, nitro or the group N(R')R'', wherein R' and R'' are each independently of the other C1-C4alkyl; R2 is phenoxy or phenylthio each of which is unsubstituted or mono- to tri-substituted by halogen, C1-C4alkyl, C1-C4alkoxy, C1-C4haloalkoxy having at least two identical or different halogen atoms, cyano, nitro, C2-C4alkenyl, C2-C4alkynyl, phenyl, 2-phenylethynyl or by a further phenoxy radical that is unsubstituted or substituted by halogen, C1-C4alkyl and/or by C1-C4alkoxy; or R2 is the radical O-CH2-O; R3 is alkyl, aryl or aralkyl having a maximum of 14 carbon atoms, these radicals can be substituted by halogen, C1-C4alkyl and/or by nitro; including the position isomers of R1 and R2, insofar as those substituents occupy positions 5 and 6. The novel compounds have plant-protecting properties and are suitable especially for protecting plants against attack by phytopathogenic microorganisms such as fungi, especially Oomycetes.
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